My DNS Report Errors (Fail & Warn)

I checked my report at dnsreport.com and see the following problems. I have
a Dynamic IP and a dynamic DNS service handling my IP. I'm running premium
with ISA and exhange with a SmartHost. Everything works perfectly. What
should I do about these failures and warnings?

(NS) FAIL Missing (stealth) nameservers FAIL: You have one or more missing
(stealth) nameservers. The following nameserver(s) are listed (at your
nameservers) as nameservers for your domain, but are not listed at the the
parent nameservers (therefore, they may or may not get used, depending on
whether your DNS servers return them in the authority section for other
requests, per RFC2181 5.4.1). You need to make sure that these stealth
nameservers are working; if they are not responding, you may have serious
problems! The DNS Report will not query these servers, so you need to be
very careful that they are working properly.
ns4.mydyndns.org.ns5.mydyndns.org.
This is listed as an ERROR because there are some cases where nasty problems
can occur (if the TTLs vary from the NS records at the root servers and the
NS records point to your own domain, for example).

(NS) FAIL Stealth NS record leakage Your DNS servers leak stealth
information in non-NS requests:
Stealth nameservers are leaked [ns4.mydyndns.org.]!
Stealth nameservers are leaked [ns5.mydyndns.org.]!
This can cause some serious problems (especially if there is a TTL
discrepancy). If you must have stealth NS records (NS records listed at the
authoritative DNS servers, but not the parent DNS servers), you should make
sure that your DNS server does not leak the stealth NS records in response
to other queries.

(MX) FAIL MX Category ERROR: I couldn't find any MX records for
mycompany.org. If you want to receive E-mail on this domain, you should have
MX record(s). Without any MX records, mailservers should attempt to deliver
mail to the A record for mycompany.org. I can't continue in a case like
this, so I'm assuming you don't receive mail on this domain.

(Mail) FAIL Connect to mail servers ERROR: I could not find any mailservers
for mycompany.org.

(SOA) WARN SOA REFRESH value WARNING: Your SOA REFRESH interval is : 10800
seconds. This seems a bit high. You should consider decreasing this value to
about 3600-7200 seconds. RFC1912 2.2 recommends a value between 1200 to
43200 seconds (20 minutes to 12 hours, with the longer time periods used for
very slow Internet connections; 12 hours seems very high to us), and if you
are using DNS NOTIFY the refresh value is not as important (RIPE recommends
86400 seconds if using DNS NOTIFY). This value determines how often
secondary/slave nameservers check with the master for updates. A value that
is too high will cause DNS changes to be in limbo for a long time.

(WWW) WARN CNAME Lookup WARNING. Your web site (www.mycompany.org) has a
CNAME record pointing to www.mycompany.com.. That by itself is confusing,
but acceptable. However, the CNAME record in this case causes an extra DNS
lookup, which will slightly delay visitors to your website, and use extra
bandwidth.

 

Hi Jim,

Contact your ISP. They should fix it.

--
Regards,

Marina
Microsoft SBS-MVP
One of the Magical M&M's